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GTX 980 Ti SC+: 3305MHz VRAM despite high GPU usage

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ricarnuninho
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2016/06/28 04:14:12 (permalink)
Hi.
Why does my GTX 980 Ti SC+ run only 3305 MHz VRAM on CUDA/OpenCL apps despite high GPU usage?
 
Therefore, do I modify BIOS or do I change GFX driver to force constantly 3505MHz?

Intel Core i7-12700KF new
2x16GB RAM@DDR4-3600 new
MSI PRO Z690-A DDR4 new
EVGA GeForce GTX 980 Ti SC+ ACX 2.0+ 
SSDs: OCZ RD400 512GB+Crucial MX500 2TB
HDD: 1TB SATA2
LG BD-RE w/ XL BH16NS40 SATA
PSU: Aerocool Gold 80+ 1kW
Case: NZXT Phantom 630
CRT monitor 21" Sony Multiscan E530 
#1

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    arestavo
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    Re: GTX 980 Ti SC+: 3305MHz VRAM despite high GPU usage 2016/06/28 05:56:20 (permalink)
    I think you have to modify the VBIOS. My cards do the same thing when Folding.
    #2
    ricarnuninho
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    Re: GTX 980 Ti SC+: 3305MHz VRAM despite high GPU usage 2016/06/28 06:45:19 (permalink)
    I'll try... :) But does VBIOS modified not void warranty?

    Intel Core i7-12700KF new
    2x16GB RAM@DDR4-3600 new
    MSI PRO Z690-A DDR4 new
    EVGA GeForce GTX 980 Ti SC+ ACX 2.0+ 
    SSDs: OCZ RD400 512GB+Crucial MX500 2TB
    HDD: 1TB SATA2
    LG BD-RE w/ XL BH16NS40 SATA
    PSU: Aerocool Gold 80+ 1kW
    Case: NZXT Phantom 630
    CRT monitor 21" Sony Multiscan E530 
    #3
    ricarnuninho
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    Re: GTX 980 Ti SC+: 3305MHz VRAM despite high GPU usage 2016/06/28 07:25:29 (permalink)
    I tried to run NV Inspector v1.9.7.3 and to increase VRAM speed (P2 level) from 3304 to 3505MHz. I can get 3505MHz real!!!!  Therefore, I don't need BIOS modified.
    Thank you!!

    Intel Core i7-12700KF new
    2x16GB RAM@DDR4-3600 new
    MSI PRO Z690-A DDR4 new
    EVGA GeForce GTX 980 Ti SC+ ACX 2.0+ 
    SSDs: OCZ RD400 512GB+Crucial MX500 2TB
    HDD: 1TB SATA2
    LG BD-RE w/ XL BH16NS40 SATA
    PSU: Aerocool Gold 80+ 1kW
    Case: NZXT Phantom 630
    CRT monitor 21" Sony Multiscan E530 
    #4
    arestavo
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    Re: GTX 980 Ti SC+: 3305MHz VRAM despite high GPU usage 2016/06/28 11:55:14 (permalink)
    Nice! I'll have to try that out when I fold for an extra boost :)
    #5
    Sajin
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    Re: GTX 980 Ti SC+: 3305MHz VRAM despite high GPU usage 2016/06/28 12:02:23 (permalink)
    I ended up just tweaking my cards vbioses. http://forums.evga.com/FindPost/2442716


    See my current build here: https://forums.evga.com/My-bench-rig-unlimited-power-m3596024.aspx
    RTX 2080 Ti 4-way SLI?!?!: https://forums.evga.com/RTX-2080-Ti-4way-SLi-set-by-yours-truly-m2954756.aspx
    #6
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